Process of leaching ashes in the manufacture of potash



J. H. WARD.

Ash Leach;

Patented July 16, 1841.

UNITED STATES PATENT OFFICE.

JOSEPH H. WARD, OF RANDOLPH TOWVNSHIP, POR'IAGE COUNTY, OHIO.

PROCESS OF LEAGHING ASHES IN THE MANUFACTURE OF POTASH.

Specification of Letters Patent No. 2,178, dated July 16, 1841.

To all whom 2'15 may concern:

Be it known that I, JOSEPH H. l/VARD, of the township of Randolph, inthe county of Portage and State of Ohio, have invented a new andImproved Mode of Heating ater for the Purpose of Leaching Ashes; and Ido hereby declare that the following is a full and exact description.

The nature of my invention consists in providing a vessel in which lyeis boiled with a cover or lid sutliciently tight to prevent the escapeof steam except through a tube or tubes which conduct it into the waterwhich is to be heated for the purpose of leaching ashes.

To enable others skilled in the art to make and use my invention I willproceed to describe its construction and operation.

I construct my vessel or boiler in which to boil lye as shown at A, inthe accompanying drawing in any of the known forms and apply thereto alid B, which is secured in its place with props or otherwise so as toprevent the escape of steam except through the tube C, the bore of whichis made sultciently large to admit of its passage without much pressureand into which other tubes are inserted as shown at D, to conduct itinto the water which is to be heated, the lower ends of which tubes areto be immersed in the water to the necessary depth for heating the sameobserving however as slight an immersion as possible to preventunnecessary pressure of steam on the boiler.

The vessel E, in which water is to be heated is made of the depth ofeight or ten inches to preserve equality of temperature,

the other dimensions will of course vary in ratio to the quantity ofwater designed to be heated at one time, said vessel is elevated so thatthe water may be drawn when heated and conveyed upon the leaches asthrough the tube F, which tube is stopped with a plug or otherwise, myleaches G, are made in any of the known forms and will of course vary innumber with circumstances. They may be elevated to the necessary heightfor the lye to run from them into the boilers as shown at the tubes H,and I, J. The end I, of the tube 1, J, is elevated about four inchesabove the limits that the boiler is intended to be filled with lye toprevent the steam from propelling lye out of said tube, which elevationhowever should vary with the pressure of steam that the boiler iscompelled to sustain. The end J, of which tube is inserted in the lowerpart of the boilers, that it may be below the surface of the lye in theboiler to prevent the escape of steam through said tube.

What I claim as my invention and desire to secure by Letters Patent is-The combination of the leach tub and reservoir of hot water with theboiler in which the lye is evaporated by means of a tube or tubes forconducting steam from the boiler to the reservoir for heating the waterin the same, the whole being constructed in the manner and for thepurpose herein set forth.

JOSEPH H. YARD.

Witnesses:

JUSTIN BELDING, AUsTIN COLLINS.

